Drinking vessel.



H. A. HOUSE.

DRINKING VESSEL.

APPLICATION FILED JULY 30, 1912.

1,1 17,848. Patented Nov. 17, 1914.

o pper part of the vessel whichis concave HENRY A. HOUSE, OF BRIDGEPORT, CONNECTICUT.

DRINKING VESSEL.

Specification of Letters Patent.

. Application filed m 30, 1912. Serial No. 712,234.

To all whom it may concern:

Be it known that I, HENRY A. HOUSE, a citizen of the United States, residing in Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Drinking Vessels,of which the following' is a specification.

This invention relates to drinking-cups made of paper or similar inexpensive material.

More particularly the invention relates to such cups as are formed from an integral disk of paper and have plaited side-walls and are coated with waterproof material.

Thepurpose of the invention is to provide such a cup of pleasing appearance and cleanly and comfortable in use, and mainly a cup which will withstand strain and hold its shape during use.

The invention consists of a cup including in combination an integral sheet of paper,

a coating of waterproofing material and a beaded rim of waterproofing material.

In the accompanyin drawing, Figure 1 is a perspective view 0 a drinking-cup embodying my invention, Fig. 2 is a vertical central section through the same on line 2-2 Fig. 3, Fig. 3 is a top view, Fig. 4 is a horizontal section on line 44 Fig. 2, the cupwall and plaits thereof being shown without the waterproofing coating, Fig. 5 is a horizontal section on a larger scale, of a portion of the wall without the waterproofing coating, and Figs. 6 and 7 are vertical sections through portions of the lip of the cup, on lines 6-6 and 77 respectively of Fig. 3.

Similar reference numerals indicate corre-.

where they terminate in the lip 13 of the'vessel. Between the bottom and the lip the sides of'the vessel are shaped in a curve 20 which viewed from the exterior of the vessel is convex and from the interior concave, and which passes into. a curve 22 forming the viewed from the exterior and convex viewed from the interior, these two curves forming together an oge'e or reverse-curve. By these curves the strain caused by the outward thrust 'of the liquid is efliciently taken up and the bulging of the vessel is prevented.

The vessel is formed from a single sheet of paper by plaiting the sides of the vessel, which takes up the surplus material, the same being folded as indicated, in tapering plaits 16, said plaitsbeing of greatest width at the top of the vessel and tapering therefrom toward the bottom of the vessel where they disappear. The plaits are inade of considerable number so as to distribute the reinforcing which they provide uniformly around the vessel. The plaits more or less cover the surface of the vessel and thereby reinforce the same and also provide vertical ribs of three thicknesses of material, namely the outer fold 17, the intermediate told 18 and the inner fold 19, which folds act-by themselves by reason of the material in them, to give strength to the vessel, and by reason of having the curved shape described they still further add to the strength of the wall.'

In manufacturing, the sheet of paper is made wet so as to be easily formed, and the center part is depressed. and during simultaneous depressing and rotation of the forming tools the portion of the sheet outside of the base is plaited and given the shape. shown in the drawing, the lower part being given the convex form and the upper art the concave form, said curved portions eing joined by a short, intermediate straight portion, the outline of {the whole conforming to the well-known ogee curve. The folds of the plaits adhere by reason of the sizing contained in the paper, which is rendered adherent by the dampness of the paper. When formed the cup while warm is immersed in melted parafiinor like. material which saturates and coats the paper and Waterproofs the same and atthe same time further cements together the folds of the plaits forming the ribs. After the paraifin is thus added, the cup is allowed to dry with "its bottom uppermost, whereby the .paraflin in melted state flows downwardly to the lip and forms a reinforcing beaded'rim at the edge of the lip, which strengthens the same and thereby the entire cup, andby filling up inequalities in the edge renders the same smooth and rounded, thus facilitating the use of the cup for drinking. The beaded rim may assume different detail forms, as shown at 30, 31, in Figs. 6 and 7 respectively,

and may be principally or entirely located at:=.110

Patented Nov. 13, 1914. 1

either the inside-or the outside of the hip, or on both sides.

V The mechanism used for forming the cups constitutes no part of this invention.

By this improvement an extremely durable one-piece paper drinking-vessel is obtained, and the adaptability of paper for the manufacture of drinking-vessels and like receptacles is largely increased.

One embodiment of the invention has been shown, but it is obvious that the invention may be applied-to receptacles of other kinds and for various purposes and to this end changes may be made in the construction without departing from the spirit of the invention.

I claim:

1. A cup, including in combination, an integral sheet of paper, a coating of waterproofing material and a beaded rim of waterproofing material.

2. An integral paper cup having side walls comprising vertical sections alternately of one thickness. and a plurality of thicknesses of paper, anouter coating of waterproofing material and a beaded rim'of waterproofing material.

An integral paper cup having side walls composed of vertical sections alternately of one thickness and three thicknesses of paper, a coating of waterproofing material rendering said side walls of uniform thickness throughout and a beaded rim of waterproofing material.

4. An integral paper cup having side walls of vertical sections alternately of one thickness and a plurality of thicknesses of paper, said plurality of thicknesses being cemented together by the inherent sizing of the paper and said cup having an outer coating and a beaded rim of waterproofing material.

5. An integral paper cup of one integral sheet having its side walls plaited and al-' ternately of one thickness and a plurality of thicknesses of paper gradually increasing in size from the lower part of the cup to the lip thereof, and a waterproofing coating thereon of greatest thickness at the lip of the cup. f In testimony, that I claim the foregoing as my invention, 1 have signed my name in presence of two subscribing witnesses.

I HENRY A. HOUSE.

' t Vitnesses:

GEORGE W. FINN, Gno. D. PHILLIPS. 

